Reseating tool for valve bodies



March 19, 1946. G. R. GILKEY 2,397,000

RESEATING TO OL FOR VALVE BODIES Filed April 17, 1944 2 Sheets-Sheet 1 Zinnentor (Ittdrneg -March 19, I946. G. R. GILKEYQY I 2,397,000

RESEATING TOOL FOR VALVE BODIES Filed April 17,1944 2 Sheets-Sheet 2 Bmaenfor Fig 5 i v I:

attorney Patented Mar. 19, 1946 UNITED S ATES QFHQFE;

2,397,0q9 Reese-rise IQQL 3 VALVE BODIES Guy R. Gilkey, Spokane, assignor of half toGeorge -Fu1ler, Metaline'Falls,

dirplicatio 1944, Serial 531,524

:olaims. r01. 9 -13.

1 WWW- 1?- 9 es r n t a vebqr csiqf 'ty e wmm d f 9 trcll'ing the passage of iiuidsthrough conduit systems, and, moreparticularly; for refinishing the valve "seat of faucets/globe valve, and similar devices in which the'valve 'seat' is positioned in alin'ement 'with a normally closed opening throug-hwhichthe' valve stem is inserted and with respect to which the same operates.

A prime defect of the prior art devices is that while means havebeen provided'for securing the valve res/eating tool to the valve bodyg'the" only additional ali'ning 'meansempl'o'yable' is that or bringing" the' cutters into engagement with the surfac'e'being reseatedwi th a result"thatf'asa "cut is taken; that end of the spindle carrying" the cutter destroys the alinement previously attained and therefore such alinement depends the reat skill'of the user."Afurtherdefect in the prior art lies'in the complexity of the means employed for attaching thes'p'mdle'tame-valve body and is also due'to the great amount 'of'tiine employed inm'aki'ng such" an attachment."

It is "an'iiriportant object" of'this' invention to provide a"valve reseatin'g: 'tool'which has 'a" spindle that is at all'times' properly alined with the valve seat vbeing refinished and the valve' body 'thereof valve bodies in which the valve seats have a wide variety of spacing 1 from"the "usual opening through which 'thevalve stem is inserted into'the irrespedtiveofwhether thejcutter cutting I engagement or not? "Anotherob'jectcf my invention lies in the provision of a reseatingtoolfor valve bodies which hasii cutter movable relative the spindle which carries it.

Still another object of the invention lies in the provision, in a tool of the type described, of a cutter that is movable from a point remote from said cutter and which may be moved during a cutting operation.

The foregoing objects and other ancillary thereto I prefer to accomplish as follows:

According to a preferred embodiment of my invention I provide a spindle having a centering cone adjacent one end and means for rotating the spindle at a point remote thereto. A cutter is carried by the spindle for rotation therewith and is mounted in the spindle for movement longitudinally thereof, means being provided remote from said cutter and operable for moving the same respective said spindle to advance it or retract it from the work. Clamping means, which may be cam operated, are also carried by said spindle and are engageable with the body of a valve member being reseated to aline the spindle relative thereto. Said clamp means may be selectively positioned on said spindle to accommodate valve body for securing by the usual packing means; 'e. a packir'ig'glandpr the'like; ""IHe novel features"thatI'consider characteristic arm invention are'set forthwith particul'arity in the appended'claims. "Theinvention itself, howverf bothas toits organizationan'd its method of operation, together withadditional objects and advantages thereotwill'bes't beunderstood' from'the following descriptionof a specifid'er nbodi rhent whemread in connection with the accompanyingdrawings; in" which "Figurelis' a"view"'inelevation'ofmy tool for reseating valve bodies'illu'strating insections such avalve bodyj" Figure 2"is a view of the spindle of my valve reseatiiig tool, with portions shown in section for c'onvhience'in illustration? I Figure 3is a view takiion line 3, 3 of Figure 2; Figure 4"is' a planview of' the jaw 'carr'ying member of thd'clm'ip meansern'ployed in securing a spindle within a'yalve b'o'dyfi f igure 5' is a'plan view of the cam actuating mans'for'the 'jaws of "the device of Figure 4;" Figures sand '7 a e 'p a'ntnd elevation" views respectively bf a clamping-yohe'employed inr'ny valve r seatingtom; a d r Figur'B a perspective view of a clamping I 1': [7 P I. i "1 H 1; A 'resati rfg tool for valve bodies to overcome the defects hereinbefore enumerated must have at least two totally distinct characteristics; it must be capable of positivealinement with respect to a valve seat for the production of an accurate reseating operation; and it must also provide a cutter that can be delicately advanced into a valve seat without destroying a previously attained alinement. Accordingly, a preferred embodiment of my invention, referring to Figure l of the drawings, constitutes a spindle, a portion of which is insertible into a valve body to position a cutter for refinishing the seat of said valve bodies. The reference letter F designates a conventional faucet having a seat S located between the inlet conduit C and the discharge conduit D in the web W through which is formed the opening 0. The seat S surrounds one side of said opening 0 and is accessible from exterior of the faucet F through the usual threaded sleeve T which accommodates the valve stem (not shown) and is closed by a conventional gland.

My tool employs a hollow or tubular spindle In which has a cone 12 at one end. The spindle is slotted at H from the end adjacent the cone inward. A bolt l6, longitudinally movable, is mounted within the spindle l and has a laterally disposed wing cutter I8 at that end adjacent the cone 12. The cutter is secured in place by a screw 20 as shown in Figure 3. The wings of the cutter are disposed in the slot l4 so that'when the bolt 16 is moved longitudinally of the spindle the cutter [8 may also move.

A crank 22 is secured to the end of the spindle opposite the cone and isemployable for rotating the spindle. An offset arm 24 on the crank arm forms a yoke which engages around the end of bolt "3 at its outer end. A nut 26 is threadably engaged on the bolt between the arms 22 and 24 and, when rotated, retracts or extends the bolt l6 longitudinally in the spindle 10.

A sleeve 30 is slidably mounted upon the spindle l0 and, on its lower end, carries fixed clamp plate 32 having a handle 33. A plurality of jaw arms 34 are pivoted at-SB to the plate 32 and downwardly extending. jaws 38 on the arms 34 clamp means for locking said sleeve to said spindle against longitudinal movement but without pass through slots 40 of the plate 32. Each arm 34 has an upstanding pin 42,

Superimposed upon the plate '32 and the arms 34 is a cam plate 44 having a handle 46. Plate 44 is rotatable about the axis of the spindle 30 relative plate 32. Camming slots 48 in the plate 44, spirally positioned with respect to the axis thereof, engage over the pins 42 so that when plate 44 is rotated relative plate 32 pressure will be applied to the pins 42 and the arms and jaws to which they are attached will either close or open. A wing nut 50, threadably engaged on the sleeve 30, is useful for clamping the plates 32 and 44 together in an adjusted position upon a valve body. The yoke 52 encircles the sleeve 30 at one end and has a clamp ,54' encircling the spindle I0 above theend of the sleeve 30. Clamp 54 'is tightened on the spindle ID by means of the bolt 55 and the wing nut 56.

. When the valve reseating tool is properly positioned on a faucet, turning movement of the crank 22 will cause the spindle to rotate in its centered position in the opening (land within the sleeve 30; The cutter [8 will also rotate but will only cut at such time as it is advanced into contact with the seat S. This advancement of the cutter I8 is obtained by turning the nut 26 and thus causing bolt I6 to move inward longitudinally of the spindle It]. It will be apparent that at all times'the spindle III is properly alined hindrance to independent co-axial rotation of the sleeve and spindle, a plate fixed to said sleeve, clamp arms pivoted to said fixed plate and having jaws each provided with a cam follower boss, a second plate rotatable on said sleeve and super positioned relative said fixed plate, camming surfaces on said second plate and cooperable with the cam follower bbsses of said clamp arms and operable upon rotation of said second plate to.

move sai clamp arms, said clamp arms being engageable to a valve body adjacent the valve seat to be tooled and a clamp nut threaded on said sleeve adjacent the second plate and operable to clamp the same and the clamp arms to said fixed plate.

2. In a valve seating tool of the type having a rotatable spindle provided with valve seat centering means on one end and a cutter operable upon a valve seat with relation to which the spindle is centered, a centering clamp for valve bodies, comprising: a sleeve slidable upon said spindle, clamp means for locking said sleeve to said spindle against longitudinal movement but without hindrance to independent co-axial rotation of the sleeve and spindle, a plate fixed to said sleeve, clamp arms pivoted to said fixed plate and having jaws extending below said fixed plate, a second plate rotatable about said sleeve and superpositioned relativesaid fixed plate, camming means between said second plate and said clamp arms and operable upon rotation of said second plate to move said clamp arms, said clamp jaws below said fixed plate being engageable to a valve body adjacent the valve seat to be tooled, anda clamp nut threaded'on said sleeve adjacent the second plate and operable to clamp the same and the clamp arms to said fixed plate.

- GUY R. GILKEY. 

